沙坪壩值得信賴的防火閥廠家

1、消(xiao)聲(sheng)(sheng)(sheng)(sheng)(sheng)性(xing)能(neng)(neng)(neng)：鍍(du)鋅(xin)薄鋼(gang)板(ban)風(feng)(feng)管(guan)(guan)：無(wu)消(xiao)聲(sheng)(sheng)(sheng)(sheng)(sheng)性(xing)能(neng)(neng)(neng)，自(zi)身震動會(hui)產生聲(sheng)(sheng)(sheng)(sheng)(sheng)音，必須加(jia)裝消(xiao)聲(sheng)(sheng)(sheng)(sheng)(sheng)器。無(wu)機(ji)玻(bo)璃(li)鋼(gang)風(feng)(feng)管(guan)(guan)：無(wu)消(xiao)聲(sheng)(sheng)(sheng)(sheng)(sheng)性(xing)能(neng)(neng)(neng)，隔聲(sheng)(sheng)(sheng)(sheng)(sheng)性(xing)能(neng)(neng)(neng)優于鍍(du)鋅(xin)薄鋼(gang)板(ban)風(feng)(feng)管(guan)(guan)，必須加(jia)裝消(xiao)聲(sheng)(sheng)(sheng)(sheng)(sheng)器。復(fu)合玻(bo)纖(xian)(xian)板(ban)風(feng)(feng)管(guan)(guan)：其管(guan)(guan)壁(bi)是(shi)一(yi)(yi)(yi)種多孔性(xing)吸(xi)聲(sheng)(sheng)(sheng)(sheng)(sheng)材料，可(ke)省去專用消(xiao)聲(sheng)(sheng)(sheng)(sheng)(sheng)器。纖(xian)(xian)維(wei)織物(wu)風(feng)(feng)管(guan)(guan)：其管(guan)(guan)壁(bi)為柔(rou)性(xing)纖(xian)(xian)維(wei)織物(wu)，本身就(jiu)是(shi)聲(sheng)(sheng)(sheng)(sheng)(sheng)音的不良(liang)導體和吸(xi)收(shou)體，自(zi)身不會(hui)產生聲(sheng)(sheng)(sheng)(sheng)(sheng)音，還可(ke)以一(yi)(yi)(yi)定(ding)程(cheng)度上吸(xi)收(shou)設備噪(zao)聲(sheng)(sheng)(sheng)(sheng)(sheng)，隨著管(guan)(guan)道的延長(chang)，效果更(geng)為明顯，可(ke)省去專用消(xiao)聲(sheng)(sheng)(sheng)(sheng)(sheng)器。2、保溫(wen)性(xing)能(neng)(neng)(neng)：鍍(du)鋅(xin)薄鋼(gang)板(ban)風(feng)(feng)管(guan)(guan)：導熱(re)系(xi)(xi)數(shu)很大(為60.4 W/m?K)，無(wu)保溫(wen)性(xing)能(neng)(neng)(neng)，必須另(ling)外加(jia)包(bao)保溫(wen)層及(ji)保護(hu)層。無(wu)機(ji)玻(bo)璃(li)鋼(gang)風(feng)(feng)管(guan)(guan)：導熱(re)系(xi)(xi)數(shu)大(為0.5W/m?K)，無(wu)保溫(wen)性(xing)能(neng)(neng)(neng)。復(fu)合玻(bo)纖(xian)(xian)板(ban)風(feng)(feng)管(guan)(guan)：導熱(re)系(xi)(xi)數(shu)小(xiao)(平(ping)均溫(wen)度24℃時小(xiao)于1W/m?K)，有一(yi)(yi)(yi)定(ding)保溫(wen)性(xing)能(neng)(neng)(neng)，不加(jia)裝保溫(wen)。

一、對通風(feng)(feng)(feng)管(guan)(guan)(guan)(guan)道(dao)制(zhi)(zhi)作的(de)(de)(de)要求進行(xing)檢(jian)查：檢(jian)查通風(feng)(feng)(feng)管(guan)(guan)(guan)(guan)道(dao)穿(chuan)越防護密(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)閉(bi)(bi)墻(qiang)、密(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)閉(bi)(bi)墻(qiang)的(de)(de)(de)預埋(mai)密(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)閉(bi)(bi)穿(chuan)墻(qiang)短(duan)(duan)管(guan)(guan)(guan)(guan)。通風(feng)(feng)(feng)預埋(mai)密(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)閉(bi)(bi)短(duan)(duan)管(guan)(guan)(guan)(guan)采(cai)用(yong)厚(hou)度(du)(du)不小于(yu)3mm鋼(gang)板機械卷(juan)制(zhi)(zhi)成形（其(qi)(qi)(qi)厚(hou)度(du)(du)還應(ying)(ying)根據預埋(mai)管(guan)(guan)(guan)(guan)管(guan)(guan)(guan)(guan)徑大小確定，使預埋(mai)管(guan)(guan)(guan)(guan)不致變形），防爆超壓排氣(qi)活(huo)門(men)的(de)(de)(de)預埋(mai)短(duan)(duan)管(guan)(guan)(guan)(guan)其(qi)(qi)(qi)厚(hou)度(du)(du)為(wei)6mm，密(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)閉(bi)(bi)短(duan)(duan)管(guan)(guan)(guan)(guan)中間(jian)應(ying)(ying)設(she)密(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)閉(bi)(bi)肋(lei)，密(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)閉(bi)(bi)肋(lei)厚(hou)度(du)(du)為(wei)5mm，密(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)閉(bi)(bi)肋(lei)高度(du)(du)為(wei)50mm，密(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)閉(bi)(bi)肋(lei)與短(duan)(duan)管(guan)(guan)(guan)(guan)應(ying)(ying)雙面滿焊、焊縫(feng)嚴密(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)。密(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)閉(bi)(bi)穿(chuan)墻(qiang)短(duan)(duan)管(guan)(guan)(guan)(guan)兩(liang)(liang)端深(shen)處(chu)(chu)墻(qiang)面的(de)(de)(de)長(chang)度(du)(du)應(ying)(ying)大于(yu)100mm，管(guan)(guan)(guan)(guan)道(dao)內外(wai)部(bu)除與混凝土接(jie)觸部(bu)分外(wai)均應(ying)(ying)刷兩(liang)(liang)道(dao)防銹漆(qi)。二、對風(feng)(feng)(feng)管(guan)(guan)(guan)(guan)連(lian)(lian)接(jie)處(chu)(chu)制(zhi)(zhi)作的(de)(de)(de)要求進行(xing)檢(jian)查,對染毒區(qu)的(de)(de)(de)通風(feng)(feng)(feng)管(guan)(guan)(guan)(guan)道(dao)連(lian)(lian)接(jie)方(fang)法及密(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)封進行(xing)檢(jian)查。如無設(she)計要求，其(qi)(qi)(qi)風(feng)(feng)(feng)管(guan)(guan)(guan)(guan)厚(hou)度(du)(du)應(ying)(ying)采(cai)用(yong)大于(yu)等于(yu)3mm的(de)(de)(de)鋼(gang)板焊接(jie)制(zhi)(zhi)作而成。風(feng)(feng)(feng)管(guan)(guan)(guan)(guan)與風(feng)(feng)(feng)管(guan)(guan)(guan)(guan)連(lian)(lian)接(jie)應(ying)(ying)采(cai)用(yong)焊接(jie)連(lian)(lian)接(jie)。通風(feng)(feng)(feng)管(guan)(guan)(guan)(guan)道(dao)與密(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)閉(bi)(bi)閥門(men)的(de)(de)(de)連(lian)(lian)接(jie)應(ying)(ying)采(cai)用(yong)帶密(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)封槽的(de)(de)(de)法蘭(lan)(lan)連(lian)(lian)接(jie)，其(qi)(qi)(qi)法蘭(lan)(lan)面應(ying)(ying)經(jing)機床車(che)削加工，保證接(jie)觸應(ying)(ying)平整(zheng)，法蘭(lan)(lan)面有(you)(you)1~2mm深(shen)的(de)(de)(de)90°密(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)封槽；風(feng)(feng)(feng)管(guan)(guan)(guan)(guan)與設(she)備連(lian)(lian)接(jie)法蘭(lan)(lan)之(zhi)間(jian)應(ying)(ying)采(cai)用(yong)整(zheng)體橡膠(jiao)法蘭(lan)(lan)墊(dian)(dian)圈，防爆超壓排氣(qi)活(huo)門(men)法蘭(lan)(lan)連(lian)(lian)接(jie)填料采(cai)用(yong)5mm整(zheng)張橡膠(jiao)墊(dian)(dian)圈密(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)封（不得有(you)(you)拼(pin)(pin)縫(feng)），其(qi)(qi)(qi)他染毒區(qu)風(feng)(feng)(feng)管(guan)(guan)(guan)(guan)連(lian)(lian)接(jie)及法蘭(lan)(lan)與設(she)備連(lian)(lian)接(jie)采(cai)用(yong)4~5mm整(zheng)張橡膠(jiao)墊(dian)(dian)圈密(mi)(mi)(mi)(mi)(mi)(mi)(mi)(mi)封（不得有(you)(you)拼(pin)(pin)縫(feng)），連(lian)(lian)接(jie)處(chu)(chu)不得有(you)(you)漏縫(feng)現象。

風管主要指中央空調系統的通風管道，它常常被忽視，但卻是空調系統的重要組成部分，沙坪壩防火閥目前常見的風管主要有四種：1）鍍鋅薄鋼板風管；2)無機玻璃鋼風管；3)復合玻纖板風管；4)纖維織物風管。鍍鋅薄鋼板風管：早使用的風管，防火閥廠家采用鍍鋅薄鋼板制作(zuo)，適(shi)合含(han)濕量(liang)小的(de)一般性(xing)氣體(ti)的(de)輸送，有易生(sheng)銹，無保(bao)溫和消聲(sheng)功能，制作(zuo)安裝周期長(chang)的(de)特點。無機(ji)(ji)玻(bo)璃(li)鋼風管：較新的(de)風管類型，采用玻(bo)璃(li)纖(xian)維增強無機(ji)(ji)材料制作(zuo)，遇火不(bu)燃、耐腐蝕、份量(liang)重(zhong)，硬度大(da)但較脆，受自重(zhong)影(ying)響易變形酥裂，無保(bao)溫和消聲(sheng)性(xing)能，制作(zuo)安裝周期長(chang)。

1、通風(feng)機(ji)安(an)裝應(ying)符(fu)合(he)下(xia)列(lie)規定（1）風(feng)機(ji)試運轉(zhuan)時，葉(xie)輪(lun)旋轉(zhuan)方(fang)向正(zheng)確(que)(que)，經不(bu)少于2H運轉(zhuan)后，滑(hua)動軸(zhou)承溫升(sheng)不(bu)超過(guo)35度(du)，高(gao)溫度(du)不(bu)超過(guo)70度(du)；滾(gun)動軸(zhou)承溫升(sheng)不(bu)超過(guo)40度(du)，高(gao)溫度(du)不(bu)超過(guo)80度(du)。（2）離心風(feng)機(ji)與(yu)(yu)減震(zhen)(zhen)臺座接(jie)觸緊密，螺栓擰緊，并(bing)有防松裝置。（3）管道(dao)風(feng)機(ji)采(cai)用減震(zhen)(zhen)吊架(jia)(jia)安(an)裝時，風(feng)機(ji)與(yu)(yu)減震(zhen)(zhen)吊架(jia)(jia)連(lian)接(jie)緊密，牢固(gu)可靠；采(cai)用支(zhi)拖架(jia)(jia)安(an)裝時，風(feng)機(ji)與(yu)(yu)減震(zhen)(zhen)器(qi)及支(zhi)架(jia)(jia)、托架(jia)(jia)連(lian)接(jie)緊密，穩固(gu)可靠。2、過(guo)濾器(qi)、紙除(chu)(chu)塵器(qi)、過(guo)濾器(qi)吸收器(qi)安(an)裝應(ying)符(fu)合(he)下(xia)列(lie)規定（1）各種(zhong)設(she)備的型號(hao)、規格、額定風(feng)量必須符(fu)合(he)設(she)計要求。（2）各種(zhong)設(she)備的安(an)裝方(fang)向必須正(zheng)確(que)(que)。（3）設(she)備與(yu)(yu)管路連(lian)接(jie)時，宜采(cai)用整體性的橡膠軟(ruan)管接(jie)頭(tou)，并(bing)不(bu)得漏氣；固(gu)定支(zhi)架(jia)(jia)應(ying)平正(zheng)穩定。（4）過(guo)濾器(qi)的安(an)裝應(ying)固(gu)定牢固(gu)，過(guo)濾器(qi)與(yu)(yu)框架(jia)(jia)、框架(jia)(jia)與(yu)(yu)維護結構之間無明顯縫(feng)隙(xi)。（5）紙除(chu)(chu)塵器(qi)和過(guo)濾器(qi)的安(an)裝，應(ying)固(gu)定牢固(gu)，位置準(zhun)確(que)(que)，連(lian)接(jie)嚴密。

風(feng)(feng)(feng)機(ji)分(fen)類可(ke)以(yi)按氣體流(liu)(liu)動(dong)的方向，分(fen)為(wei)離心(xin)式(shi)(shi)、軸流(liu)(liu)式(shi)(shi)、斜(xie)流(liu)(liu)式(shi)(shi)和橫流(liu)(liu)式(shi)(shi)等類型。這種風(feng)(feng)(feng)機(ji)分(fen)類的機(ji)器有：離心(xin)風(feng)(feng)(feng)機(ji)工作時，動(dong)力(li)機(ji)(主要是(shi)電動(dong)機(ji))驅動(dong)葉輪(lun)在(zai)(zai)蝸形機(ji)殼(ke)內旋轉，空氣經吸(xi)氣口從葉輪(lun)中心(xin)處吸(xi)入。由于(yu)葉片對(dui)氣體的動(dong)力(li)作用，氣體壓力(li)和速度得(de)以(yi)提高(gao)，并(bing)在(zai)(zai)離心(xin)力(li)作用下沿著葉道甩向機(ji)殼(ke)，從排氣口排出。因氣體在(zai)(zai)葉輪(lun)內的流(liu)(liu)動(dong)主要是(shi)在(zai)(zai)徑(jing)向平(ping)面內，故(gu)又稱徑(jing)流(liu)(liu)風(feng)(feng)(feng)機(ji)。離心(xin)風(feng)(feng)(feng)機(ji)主要由葉輪(lun)和機(ji)殼(ke)組成，小型風(feng)(feng)(feng)機(ji)的葉輪(lun)直(zhi)接裝在(zai)(zai)電動(dong)機(ji)上(shang)中、大(da)型風(feng)(feng)(feng)機(ji)通過聯軸器或皮(pi)帶輪(lun)與電動(dong)機(ji)聯接。離心(xin)風(feng)(feng)(feng)機(ji)一般(ban)為(wei)單側(ce)進氣，用單級葉輪(lun)；流(liu)(liu)量(liang)大(da)的可(ke)雙側(ce)進氣，用兩個背靠背的葉輪(lun)，又稱為(wei)雙吸(xi)式(shi)(shi)離心(xin)風(feng)(feng)(feng)機(ji)。

在(zai)葉(xie)(xie)(xie)(xie)輪運轉(zhuan)初期及所有(you)(you)(you)定(ding)(ding)期檢(jian)(jian)查(cha)的時(shi)候(hou)，只要(yao)一(yi)有(you)(you)(you)機(ji)會(hui)，都必須檢(jian)(jian)查(cha)葉(xie)(xie)(xie)(xie)輪是否出現裂紋、磨損、積塵(chen)(chen)等缺陷(xian)。只要(yao)有(you)(you)(you)可(ke)能(neng)，都必須使葉(xie)(xie)(xie)(xie)輪保持清潔狀態，并定(ding)(ding)期用(yong)鋼絲刷刷去上面的積塵(chen)(chen)和銹皮等，因為隨著運行時(shi)間的加長，這(zhe)些灰(hui)塵(chen)(chen)由于不可(ke)能(neng)均勻地附著在(zai)葉(xie)(xie)(xie)(xie)輪上，而造(zao)成葉(xie)(xie)(xie)(xie)輪平(ping)(ping)衡破壞，以至引起轉(zhuan)子振動(dong)。葉(xie)(xie)(xie)(xie)輪只要(yao)進行了修理，就需要(yao)對其再作動(dong)平(ping)(ping)衡。如(ru)有(you)(you)(you)條(tiao)件，可(ke)以使用(yong)便攜試動(dong)平(ping)(ping)衡儀(yi)在(zai)現場進行平(ping)(ping)衡。在(zai)作動(dong)平(ping)(ping)衡之前(qian)，必須檢(jian)(jian)查(cha)所有(you)(you)(you)緊(jin)定(ding)(ding)螺栓(shuan)是否上緊(jin)。因為葉(xie)(xie)(xie)(xie)輪已(yi)經在(zai)不平(ping)(ping)衡狀態下(xia)運行了一(yi)段(duan)時(shi)間，這(zhe)些螺栓(shuan)可(ke)能(neng)已(yi)經松(song)動(dong)。